How to Install Webmin on Ubuntu 18.04 / 16.04 / Debian 9

In this guide, we will cover the installation of Webmin on Ubuntu 18.04 / Ubuntu 16.04 / Debian 9 Linux distributions. Webmin is the leading open source web-based Linux/Unix system administration control panel.

If the installation goes well, you should get output similar to below:

Webmin install complete. You can now login to https://<ServerIP|Hostname>:10000/
as root with your root password, or as any user who can use sudo
to run commands as root.
Processing triggers for systemd (232-25+deb9u6) ...